Improvement in apparatus for operating pumps



J'. A. & 13.3. HURLEY. APPARATUS FOR OPERATING PUMPS.

No. 195,508. Patented Sept.25, 1877.

WITNESSES:. I INVENTOR-fi ATTORNEYS.

MFEI'EAS, PHOYQLITHOGRAPBER, WASHINGTON, DV 0.

NITED STATES PATENT DFFICE.

JOHN A. HURLEY AND DANIEL J. HURLEY, OF OIL CITY, PENNSYLVANIA.

IMPROVEMENT IN APPARATUS FOR OPERATING PUMPS.

Specification forming part of Letters PatentNo. 195,508, dated September 25. 1877 application filed August 24, 1877.

To all whom it may concern.-

Be it known that we, JOHN A.'HUBLEY and DANIEL J. HURLEY, of Oil City, in the county of Venango and State of Pennsylvania, have invented a new and Improved Pumping Apparatus for Oil and Artesian Wells, of

, Fig. 2, a detail top view of the device for adjusting the pump-piston to the actuating chain or rope.

Similar letters of reference indicate corresponding parts.

This invention relates to an improved pumping apparatus for oil and Artesian wells; and

consists of a rock-beam operated by the pitman of an engine, and connected by balljoints with the ends of a cable or rope, passing over guide-pulleys, and being attached by an adjusting device on the pump-rod.

By reference to thedrawing, A represents the pump or piston rod, which is guided in suitable manner at the head of the oil or artesian well, and connected by an adjusting mechanism, B, to a wire cable or chain, 0, that is stretched over grooved pulleys O turning in bearings of a fixed vertical support, 0 and being attached at both ends to a centrallyfulcrumed rock-beam, D. The rock-beam D is provided at each end with concave recesses or seats a for the hemispherical washers b, that are retained by nuts on the bolts or other connections d, attached to the ends of the cable or chain 0. The bolts pass through the washers b and through slots of the concave seats a, and have, on account of the balljoints, free play, so as to accommodate themselves to the motion of the rock-beam and cable.

The adjusting mechanism B is retained on the pump-rod A by collars and clamp-screws c, and the cable attached to the rigidly fastened adjuster B by a suitable clamping device,

so that the adjuster is prevented from moving on the pump-rod, and the rod. thereby compelled to follow the motion of the cable as produced by the rocking of the beam. The rock-beam is connected at the lower end with the pitman of a steam or other engine, by which oscillating motion is imparted to the rock-beam, which, by the cable and adjuster, gives vertical reciprocating motion to the pump-rod, so as to work the well by a simple and reliable apparatus.

Having thus described our invention, we claim as new and desire to secure by Letters Patent l. A pumping apparatus for oil-wells, consisting essentially of a rock-beam oscillated by the pitman of the engine, of a cable or chain connected by ball-joints to the rockbeam, and stretched over guide-pulleys, and of an adjusting device by which the cable is rigidly connected with the pump-rod, substantially in the manner and for the purpose set forth.

2. The combination of the guided and reciprocated cable or chain 0 with the adjusting mechanismB, that is clamped to the cable and secured by collars to the pump-rod, substantially as described.

3. The combination of the reciprocating cable or chain 0, having end bolts or connections d, with the slotted and concaved ends a of the rock-beam, ball-washers b, and fastening-nuts, substantially as specified.

JOHN A. HURLEY. DANIEL J. HURLEY.

Witnesses JAMES OOONNELL, GEORGE Ross. 

